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Hypothesis Testing on Population Proportion Wk5S2

Quiz by Queeny Joyce Sebastian

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7 questions
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  • Q1

    A survey conducted last year by the barangay health workers showed that 20% of the students smoked. This year, a new survey is conducted on 150 students selected randomly from the same school. It was found out that 35 of them smoke. Test if the claim has decreased at α = 0.01 level. Formulate the correct alternative hypothesis.

    Ho: p < 0.20

    Ha: p = 0.20

    Ha: p < 0.20

    Ho: p ≠ 0.20

    30s
  • Q2

    In testing hypothesis involving population proportion, when do we say that the sample size (n) is sufficiently large?

    if n/p<5, n/q<5

    if n>30

    if n<100

    if np>5, nq>5

    30s
  • Q3

    It is a part of the population with a particular trait expressed in decimal, percent, or fraction.

    Population Proportion

    Sample Proportion

    Sample

    Proportion

    30s
  • Q4

    Twenty-eight percent (28%) of all Masagana High School students believe that Monday will be a rainy day. You take a sample of 50 students and find that 15 of them believe Monday will be a rainy day. What does 50 represent?

    p

    p hat

    x

    n

    30s
  • Q5

    In testing hypothesis involving population proportion, which of the following is appropriate to use?

    t-test

    x-test

    p-test

    z-test

    30s
  • Q6

    If the value of p is 0.45, what is the value of q?

    0.54

    0.55

    0.45

    0.46

    30s
  • Q7

    A new proposition on a ballot wants to know whether it is likely to pass upon obtaining more than 50% of the vote. A poll is taken and 571 out of 1,000 people support the proposition. What is the value of the test statistic?

    4.10

    2.37

    3.46

    4.49

    120s

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